Interesting. I've had the same issue on 4, but def not near as much oil. I've had my car since brand new (4 miles) I've had oil on 4 since 35k miles I have 78k now and it's still the same amount. Sometimes it's almost nothing. I'll address mine when I do my timing chain. Which I learned you can check stretch with OBD11.
I've only had the car about 8 months. I bought it with 65k on the odo. The first week I had it, I pulled the plugs to swap them, and they were all dry. 8 months and about 7,500 miles later, I'm noticing this.
Right now, I'm in a "wait and monitor" stage. The PCV from FCP will be here tomorrow. I'll swap that on. Give it a week, and pull the plug and see how it looks. I haven't had any drivability issues. If I didn't decide to swap plugs so soon because they're cheap enough, I never would have even know. Not saying that means I can completely ignore it, but it's not a dire situation. Yet.
Honestly, I probably wouldn't pay to have the cover\cradle resealed. At that point, it'd be traded in and made someone else's problem.